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Roles.GetAllRoles Method

Gets a list of all the roles for the application.

Namespace:  System.Web.Security
Assembly:  System.Web (in System.Web.dll)

'Declaration
Public Shared Function GetAllRoles As String()
'Usage
Dim returnValue As String()

returnValue = Roles.GetAllRoles()

Return Value

Type: System.String()
A string array containing the names of all the roles stored in the data source for the application.

ExceptionCondition
System.Configuration.Provider.ProviderException

Role management is not enabled.

The GetAllRoles method calls the RoleProvider.GetAllRoles method of the default role provider to get a list of all the roles from the data source for an application. Only the roles for the application that is specified in the ApplicationName property are retrieved.

The following code example uses the GetAllRoles method to get the list of roles for an application and bind the results to a System.Web.UI.WebControls.GridView control. For an example of a Web.config file that enables role management, see Roles.

Security noteSecurity Note:

This example contains a text box that accepts user input, which is a potential security threat. By default, ASP.NET Web pages validate that user input does not include script or HTML elements. For more information, see Script Exploits Overview.

<%@ Page Language="VB" %>
<%@ Import Namespace="System.Web.Security" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" 
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">

Dim rolesArray() As String 

Public Sub Page_Load(sender As Object, args As EventArgs)

  If Not IsPostBack Then 
    ' Bind roles to GridView.

    rolesArray = Roles.GetAllRoles()
    RolesGrid.DataSource = rolesArray
    RolesGrid.DataBind()
  End If 

End Sub 

Public Sub CreateRole_OnClick(sender As Object, args As EventArgs)

  Dim createRole As String = RoleTextBox.Text

  Try 
    If Roles.RoleExists(createRole) Then
      Msg.Text = "Role '" & Server.HtmlEncode(createRole) & "' already exists. Please specify a different role name." 
      Return 
    End If

    Roles.CreateRole(createRole)

    Msg.Text = "Role '" & Server.HtmlEncode(createRole) & "' created." 

    ' Re-bind roles to GridView.

    rolesArray = Roles.GetAllRoles()
    RolesGrid.DataSource = rolesArray
    RolesGrid.DataBind()
  Catch
    Msg.Text = "Role '" & Server.HtmlEncode(createRole) & "' <u>not</u> created." 
  End Try 

End Sub

</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head>
<title>Sample: Create Role</title>
</head>
<body>

<form runat="server" id="PageForm">
  <h3>Create a Role</h3>

  <asp:Label id="Msg" ForeColor="maroon" runat="server" /><br />

  Role name: 

  <asp:TextBox id="RoleTextBox" runat="server" />

  <asp:Button Text="Create Role" id="CreateRoleButton"
              runat="server" OnClick="CreateRole_OnClick" />

  <br />

  <asp:GridView runat="server" CellPadding="2" id="RolesGrid" 
                Gridlines="Both" CellSpacing="2" AutoGenerateColumns="false" >
    <HeaderStyle BackColor="navy" ForeColor="white" />
    <Columns>
      <asp:TemplateField HeaderText="Roles" >
        <ItemTemplate>
          <%# Container.DataItem.ToString() %>
        </ItemTemplate>
      </asp:TemplateField>
    </Columns>
   </asp:GridView>
</form>

</body>
</html>

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Supported in: 3.5, 3.0, 2.0
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